Printing-press attachment.



C. E. SHREFFLER.-

PRINTING PRESS ATTACHMENT.

APPLICATION FILED` FEB. 1| 191A Patented Aug. 21, 1917.

sHEETs-SHEET 1.

' C. E. SHREFFLER.

PRINTING PRESS ATTACHMENT.

APPLICATION man FEB 1 1911 Patented Aug. 21, 1917.

3 SHEETS-SHEET 2.

C. E. SHREFFLER.

PRINTING PRI-ISS ATTACHMENT. APPLICATIoN FILED FEB.1.1917.

1 ,237,396. Patented Aug. 21, 1917;

EETS-SHEET 3.

l J I,

umfrnn y szrarns rarnivr curio oLAnnNcn n. snanrrtna on CHICAGO; ILLINOIS.

PRINTING-PRESS ATTACHMENT.

To all whom t may concern* Beit known that I, CLARENCE E. Srrnnrr- LER, a citizen; of the United States, residingy atv Chicago, in thefcoiinty of Cook and State of Illinois, have invented a. certain new and` useful liinproveinent in 'PrintingPress Attachments, oi2 which the following is a speci.

' My invention relates to improvements printing 'presses and has for one object to provide a new and .improved device which will; effectively protect the "roller bed of a printing press from dirt, dust and the like troni the feet-'fof the men operating` the press. j

Another' object is to provide anew and inproved `scaiioldifiig`or platform upon which the men may stand While `vvorkiiigjton thel press. Another object is to provide a' device for protecting` the operator against danger in case the press should be pnt in roperation Figure l is a side elevation of a part of the press with parts omitted illustrating my invention; U n j j Fig. 2 is a plan vieivon an enlarged scale of part ot the structure shown ink Fig. l g

Fig. is a section along the line of Isig-.12pmr j j .Figi 4f is a section alongv a similar line showing however, a modified forni.

Figi 5 is a sectionthrouglia further niodgi-k lied iorin.` *j i j Like parts are indicated by like characters in the drawings. y

A `is ythe base oi va press. upwardly projecting supporting frame 1nem bersA1 A2 ivhich carry a fixed table Af The base A' also carries bearings A4 iny which j tlieplaten" roller A is rotatably. mounted. This plateniol'ler is of the ordinary type aud driven byfany suitablemea'ns not here specifically illustrated.` AG' A?! `are roller bearings on tlie'base A, and A2 is the form bed adapted to travel backj` and forth upon su eli roller bearings beneath the platen roller the arrangement being. such thatlwhen a paper` is'earried around the platen roller in iinisonwith the reciprocation'of theform bed impression is made by the flform on the bed on 'the paper.

BV isV a pivoted table pivoted l on the j table It carries the Specification of LettersPatent. Patented A o@ 21, 1917; appiieation iearebruary 1, 1917. serial No; 145,869. y

make a continuous smooth surface leading down toward the platen roller, BAk being a iiange or lip extending' beyond the end ,of

tlieftable toivard and in close proximity to the'peripliery of the platen roller. B5 is a reiniorcing channel connecting` the support ing arms BG. These arms are pivoted on a pivot bar B7 Which is supported on the mem-4 bers A1 A2. The arms BG are provided with levers BS which are provided on the press before my invention is applied. to it for the vpurpose of carrying` 'counterbalances which counterbalaneethe Weight of the table. For the purpose oi applying my invention, these counterbalances are first removed. f

C is a platform or scaliold adapted to extend across the press above the fornibed.

It is alittle shorter than the inside distancev between the frame members, carries along` either edge an angle G1 upwardly extended and removed from the edge of the'platforin v .for the purpose of forming` the gutter or trough to lcatch grit, dustpand dirtjand the like which may be scraped off on the'platform by the feet of the operator and to prevent such materials from being` dropped down on top of the press ivhere it mighty ydamage the rollers and other parts. C2 C2 Extending"rearwardly from the foot board C.

is arig'idlever C4 provided at its outermost cnd'ivith the coiiii'terbalance C5. C is a link pivoted on the lever adjacent the counterbalancent one end and pivoted on the frame member at theother end, the function of this link being', of course, to insure that the foot board,- Wheii the folding table is turned up,

- ivillassume a7 position in substantial parallelism With the top of the forni'bed and ybe held in position above the form bed so that it mayreciprocate back andfortli beneath the board Without interfering` With the 'operator standing upon itl Itv will be noted by referenceto Fig. 3 that y when in a Working' position the platform isA moved forward' beyond its center ofy suspension and so' when aweight is placed upon it'there` is a tendency to swing'back in a counter-clockwise direction. This tendency is resisted by the latch member D pivoted on the tie rod D1 adapted to engage the roller D2 on the bolt D3. arranged that when the press is printing and the foot board is folded up out of the way, this latch member overlies thek board and does not interfere in any way with its assuming the position shown in dotted lines in Fig. l.

In Fig. 4 is shown a modified form. The arms E project downwardly from the rear side of the Amovable part of the table and carry pivoted upon them a foot board El adapted to rest upon supports E2 in Fig. 4 adapted to be held in position as shown in dotted lines by the latch E3.

It will be evident that while I have shown in my drawings an' operative device, still many changes might be made in size, shape and arrangement of parts without departing materially from the spirit of my invention and I wish therefore that my drawings be regarded as diagrammatic.

In the modified form shown in F ig. 5 the working platform .I is hinged on the ends of a pair of arms J1 so that when in the lower position shown in full lines the platform rests on the stops or abutments J2 on the press frame. As the arms .Il rotate upwardly, the platform J rotates downwardly with respect to them a short distance until l it comes to a stop as shown when the arms and the platform rotate together until the arm brings the working platforn'i into a position immediately beneath the feeding table. Each arm J1 is provided with an elbow eX- tension as indicated at J3 pivoted on the frame and adapted to be rotated by means of a link J4 attached to the arm BS.

This device, is not, of course, as satisfactory as in the preferred form because the board itself is not automatically put in position. The operator, if he is in a hurry, may

forget or neglect to release the catch E3 and allow the board to drop down and thus the bearings and operator are neither of them protected.

The use and operation of my invention are as follows: s

When the press is at work the parts are in the position shown in full lines in Fig. 1.

, The operator stands at one side ofthe press and feeds the paper down along the table to the platen roll which catches the sheet and carries it around between itself and the form. This process continues until the sheet is done and needs no further explanation.

Then the press is being set up for a newr run the forward part of the table is tipped up so that the operatorcan get in between the platen roller and the other parts. I-Ie has to do this because it sometimes becomes necessary to build up `the packing on the This latch is so platen roll at one point or another so as to insure a clean impression. If no means are provided the operator will step in on the bearings carrying with him on his shoes the dirt and dust from the press room floor and upon starting the press at a later period this dirt and dust will be ground into the bearings causing rapid wear and unsatisfactory operation. In order to guard against this, I have provided my automatic foot board and it hangs on the same pivot as the table, thus when the table goes up the board comes down and is latched in position where it protects the bearings from the operator and gives him a solid and firm platform upon which to stand. If for any reason it is desired to cause the form bed to reciprocate this can be done because the platform is raised sufliciently above the bed to afford clearance. Then the operator wishes to start the press again he releases the catch and permits the table to drop down. The weight of the board serves as a counterbalance for the table and does not increase the difficulty of operation. The gutters or channels along the sides of the board catch the material and may be cleaned any suitable time with a brush or the like and the bearings are thus further protected.

Obviously this device operates also as a safeguard to the men because if they were standing below on the bearings in the path of the movable form bed and if the press were started they would be caught between the form bed and the platen roller. Y i

I claim:

l. The combination with a press comprising a platen roller, a form bed adapted to reciprocate beneath the roller, bearings therefor, a feeding table and a pivoted extensiontherefor, of a working platform and means for bringing it in and holding it in position above the bearings and between the table andv roller.

2. The combination with a press comprising 'a platen roller, a form bed adapted to reciprocate beneath the roller, bearings therefor, a feeding table and a pivoted extension therefor, of a working platform and means for bringing it in and holding it in position above the bearings and between the table and roller said means being operative and responsive to the movement of the feeding table extension upon its pivoted axis.

3. The combination with a press comprising a platen rolle-r, a form bed adapted to reciprocate beneath the roller, bearings therefor, a feeding table and a pivoted eX- tension therefor, ofa working platform, supporting members therefor progectmg real wardly from the pivoted extension andk et. The ycombination 4with* a press `comprising a platen roller, a form bedk adapted to reciprocate beneath the vroller,'bearings therefor, a feeding` `table vand apivotedextension therefor, of a working platform,

supporting members therefor projecting rearwardly from the pivoted extension and ing a platen roller, a form bed adapted to re#` cprocate beneath the roller, bearings there for, a feeding table and apivoted extension therefor, of a working platfornnsupporting members therefor projecting rearwardly front the pivotedy extension and mounted thereon and meansadditional to rsaidsupporting members for holding said `working platform `.in substantial `parallelism with the line of movement-,of the formk bed,Y said means com arisin(y a'flever extending rearr 23 k D i wardly `from the working platform and ak link pivoted at one end `on the lever and at' the other end on the feeding.table,togethery with a counter-balance'weight mounted onk the free end of said lever to assist in counter` balancing the weight of the pivot extension.

(l. The combination with a press comprising ay platen roller, a formbedradapted to reciprocate beneath the roller, bearings therefor, afeeding table and apivoted extension therefor, of means for ,counter-bals ancing' the pivoted feeding table extension comprising a working `platformand means for automatically moving said platform in an operating position over thev form bed bearings when the extension is rotated about its axis into inoperative position;

7. The combination. with a press comprising a platen roller, a form bed adapted to reciprocate beneath the roller, bearings therefor, a feeding table and apivoted eX- tensiontherefor, of a working platform, and means for automatically moving yit in and holding it in a position between the platen roller and the feed table and slightly above the path of the form bed when the extension rotated. about itsaxis out of `its operating position. y

8. The combination with a press comprising a platen roller, a form bed adapted to reciprocate i beneath the "roller, kbearings therefor, a feei'ling table and a pivoted exten sion therefor, of a workingk platform, and means for bringing itin and holding it in position above the bearings and between the table and roller by movement of said pivoted extension, open trough members arranged along the opposed sides of the working platreciprocate beneath form and separated therefrom to catch the material scraped from the shoes of the operators as they stand upon and move about on the working platform. l i

9. The combination with a press compris-k ing a platen roller, a form ybed adapted to the roller, rvbearings therefor, a feeding table and a pivotedeX- tension therefor', of a working platform and means for automatically moving. it in and holdingy it in a position between the platen roller and the feed table and slightly above the path of the form bed when the extension c is rotated about its axis out of its operating position, open Vtrough members arranged along the opposed sides of the working platform and separated therefrom to catch ma-` terial scraped fromthe shoes ,of the opera-y tors as they stand upon and move about on theworlring platform.

lO. The combination with a press comprising a platen roller, a form bed adapted to reciprocate beneath it, bearings therefor and a` two part feeding table, one of said parts ibeing adapted to lbe moved away from itsoperative position to permit adjustment ofthe press, of an ample working platform and means for automatically bringing it into an operating position when one part of the feeding table is moved away `from its Operating position. f

l1. The con'ibination with a press ,co1nprising a platen roller, a form bed adapted to reciprocate beneath it, bearings therefor and a two part feeding table, oneof said parts being adapted to be moved away from its operative position to permit adjustment of the press, of an ample working platform and means for automatically bringingit into an' operating position when one part of the feeding table is moved away from its operating position, said means'being adapted to bring the working platform up'into a posii tion immediately beneath the feed table when the feed table is in its operating position. l y

12. The combination with a press comprising a platen roller, a form bed adapted to reciprocate beneath it, bearings therefor and a two part feeding table, one of said parts being adapted to be moved away from its operative position to permit adjustment of the press, of an ample working platform and means for automaticallyy bringing it into an operating position when one part of the feeding table is moved vaway from its operating position said means comprising a series of supporting levers for the working platform and a driving connection between such levers and the table. e

13. The combination with a press' comprising a platen roller, a form bedadapted to reciprocate beneath it, bearings therefor and a two ,part feeding table, one of said yparts being adapted to be moved away from its operative position to permit adjustment ofthe press, of an ample working platform and means for automatically bringing it into an operating position when one part of the feeding table is moved away from its operating position, said means being adapted to bring the working platform up into a position immediately beneath the feed table when the feed table is in its operating position, said means comprising a series of supporting levers for the working platform and a driving connection between such levers and the table.

lll. The combination in a press having a platen roller and a form bed mounted for reciprocation in coperation therewith, of

a feeding table above the form bed having a pivoted extension, a working platform and means responsive to the rotation of the pivoted extension away from the platen for automatically moving such working platform into position adjacent the platen.

15. The combination in a press having a platen roller and a form bed mounted for reeiprocation in eoperation therewith, of a feeding table above the form bed having a pivoted extension, a worlingplatform and means responsive to the rotation of the pivoted extension away from. the platen for automatically moving such working platform in the position adjacent the platen said working platform being when in the position adjacent the table supported above the form bed.

16. The combina-tion in a press having a platen roller and a form bed mounted for reciprocation in Coperation therewith, of a feeding table above the form bed having a pivoted extension, a working platform and means responsive to the rotation of the pivoted extension away from the platen for automatically moving such working platform in the position adjacent the platen and adapted when in the inoperative position to lie immediately beneath the working table and far removed from the platen and the form bed.

17. The combination in a press having a platen roller and a form bed mounted for reciproeation in cooperation therewith, of a feeding table adjacent the form bed having a pivoted extension, a working platform and means responsive to the rotation of the pivoted extension away from the platen for automatically moving such workingk platform-in the position adjacent the platen said working platform being when in the position adjacent the table supported above the form bed and adapted when in the inoperative position to lie immediately beneath the working table and far removed from the platen and the form bed.y

In testimony whereof, I afl-ix my signature in the presence of two witnesses this 24th day of January, 1917.

CLARENCE E. SHREFFT 1ER.

Witnesses: v R. N. LLOYD, lV. J. COPP.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

` Washington, D. C. 

